Self-built children's playground

Quick answer：

A self-built children's playground refers to a playground that is constructed independently by an individual, organization, or community without the involvement of a government or commercial entity. These playgrounds are often designed to cater to the specific needs and interests of the children in the area and can include a variety of play structures, slides, swings, and other amenities. The process of building a self-built children's playground involves planning, design, funding, construction, and maintenance.